That is, a device to train autistic children to communicate "normally". Not a method for more effective teaching in general.
While obviously a biased sample, the #ActuallyAutistic reactions I've seen so far are... not enthusiastic (roughly: Holy shit, again with the "eye contact" obsession; do you think we haven't figured out where your eyes are?).
The more articles like this I see, the more I get the whole "nothing about us without us" thing.